Genus Guadarramasoma Gilgado, Ledesma, Enghoff & Mauriès gen. nov.

Etymology. The name refers to the mountain range and national park where this species was discovered: Sierra de Guadarrama National Park. Gender neuter.

Diagnosis. The genus being monotypic, a description of the genus is also a description of the sole species. Thus, we are including in the diagnosis only those general characters that distinguish this genus from other Haplobainosomatidae .

Gonopod telopodites simple and elongated, synangiocoxite with only two anterior, not protruding but flat expansions (a1), a second pair of expansions only vestigial (a2), and with a posterior pair of divergent laminar and acute structures fused at their basis (a3), laterally and basally covered at half its length by the laminar and membranous structures of the colpocoxite.